yannis' webpage

I am a Postdoctoral Research Associate at the Institute of Applied and Computational Mathematics (IACM), Foundation for Research and Technology–Hellas (FORTH).

In the coming months I will join the Department of Mathematics and Applied Mathematics at the University of Crete as an Associate Professor.

Research interests

Nonlinear partial differential equations
General relativity
Fluid dynamics

Preprints

arxiv links

2026
The moduli space of dynamical spherically symmetric black hole spacetimes and the extremal threshold
With Christoph Kehle and Ryan Unger

arXiv:2603.10378
2026
Matching conditions for scattering solutions of scalar wave equations on extremal Reissner–Nordström spacetimes
With Istvan Kadar

arXiv:2602.14712
2023
Supersonic flow past an airfoil

arXiv:2312.17408
2021
Instability results for transonic flows past airfoils

arXiv:2109.13369
2020
Semi-global constructions of spacetimes containing curvature singularities

arXiv:2010.05876
2016
Asymptotic blow-up for a class of semilinear wave equations on extremal Reissner–Nordström spacetimes
With Stefanos Aretakis and Dejan Gajic

arXiv:1612.01562

Publications

journal links and arxiv versions

2026
Nonlinear stability of extremal Reissner–Nordström black holes in spherical symmetry
With Christoph Kehle and Ryan Unger
Forum of Mathematics, Pi 14, e3 (2026)

Published version arXiv:2410.16234
2025
Semilinear wave equations on extremal Reissner–Nordström black holes revisited
With Ryan Unger
Communications in Mathematical Physics 406, 239 (2025)

Published version arXiv:2502.00210
2023
Late-time tails and mode coupling of linear waves on Kerr spacetimes
With Stefanos Aretakis and Dejan Gajic
Advances in Mathematics 417, 108939 (2023)

Published version arXiv:2102.11884
2023
Price’s law and precise late-time asymptotics for subextremal Reissner–Nordström black holes
With Stefanos Aretakis and Dejan Gajic
Annales Henri Poincaré 24, 3215–3287 (2023)

Published version arXiv:2102.11888
2020
A non-degenerate scattering theory for the wave equation on extremal Reissner–Nordström
With Stefanos Aretakis and Dejan Gajic
Communications in Mathematical Physics 380, 323–408 (2020)

Published version arXiv:1910.07975
2020
Nonlinear scalar perturbations of extremal Reissner–Nordström spacetimes
With Stefanos Aretakis and Dejan Gajic
Annals of PDE 6, 12, pp. 1–124 (2020)

Published version arXiv:1908.00115
2020
Invariant measures for integrable spin chains and an integrable discrete nonlinear Schrödinger equation
With Rowan Killip and Monica Visan
SIAM Journal on Mathematical Analysis 52(1), 135–163 (2020)

Published version arXiv:1807.08801
2020
Late-time asymptotics for the wave equation on extremal Reissner–Nordström backgrounds
With Stefanos Aretakis and Dejan Gajic
Advances in Mathematics 375, 107363 (2020)

Published version arXiv:1807.03802
2019
Logarithmic corrections in the asymptotic expansion for the radiation field along null infinity
With Stefanos Aretakis and Dejan Gajic
Journal of Hyperbolic Differential Equations 16(1), 1–34 (2019)

Published version arXiv:1712.09977
2018
Horizon hair of extremal black holes and measurements at null infinity
With Stefanos Aretakis and Dejan Gajic
Physical Review Letters 121, 131102 (2018)

Published version arXiv:1809.10037
2018
Asymptotics for scalar perturbations from a neighbourhood of the bifurcation sphere
With Stefanos Aretakis and Dejan Gajic
Classical and Quantum Gravity 35(15), 155007 (2018)

Published version arXiv:1802.05692
2018
Late-time asymptotics for the wave equation on spherically symmetric, stationary spacetimes
With Stefanos Aretakis and Dejan Gajic
Advances in Mathematics 323, 529–621 (2018)

Published version arXiv:1612.01566
2018
A vector field approach to almost-sharp decay for the wave equation on spherically symmetric, stationary spacetimes
With Stefanos Aretakis and Dejan Gajic
Annals of PDE 4, 15 (2018)

Published version arXiv:1612.01565
2017
The trapping effect on degenerate horizons
With Stefanos Aretakis and Dejan Gajic
Annales Henri Poincaré 18(5), 1593–1633 (2017)

Published version arXiv:1512.09094
2016
Global spherically symmetric solutions of non-linear wave equations with null condition on extremal Reissner–Nordström spacetimes
International Mathematics Research Notices 2016(11), 3279–3355 (2016)

Published version arXiv:1408.4478
2016
Well-posedness and ill-posedness results for the Novikov–Veselov equation
Communications on Pure and Applied Analysis 15(3), 727–760 (2016)

Published version arXiv:1307.4110

Contact & links

yannisang@gmail.com

yannis.angelopoulos@iacm.forth.gr

Google Scholar

Research interests

Preprints

The moduli space of dynamical spherically symmetric black hole spacetimes and the extremal threshold

Matching conditions for scattering solutions of scalar wave equations on extremal Reissner–Nordström spacetimes

Supersonic flow past an airfoil

Instability results for transonic flows past airfoils

Semi-global constructions of spacetimes containing curvature singularities

Asymptotic blow-up for a class of semilinear wave equations on extremal Reissner–Nordström spacetimes

Publications

Nonlinear stability of extremal Reissner–Nordström black holes in spherical symmetry

Semilinear wave equations on extremal Reissner–Nordström black holes revisited

Late-time tails and mode coupling of linear waves on Kerr spacetimes

Price’s law and precise late-time asymptotics for subextremal Reissner–Nordström black holes

A non-degenerate scattering theory for the wave equation on extremal Reissner–Nordström

Nonlinear scalar perturbations of extremal Reissner–Nordström spacetimes

Invariant measures for integrable spin chains and an integrable discrete nonlinear Schrödinger equation

Late-time asymptotics for the wave equation on extremal Reissner–Nordström backgrounds

Logarithmic corrections in the asymptotic expansion for the radiation field along null infinity

Horizon hair of extremal black holes and measurements at null infinity

Asymptotics for scalar perturbations from a neighbourhood of the bifurcation sphere

Late-time asymptotics for the wave equation on spherically symmetric, stationary spacetimes

A vector field approach to almost-sharp decay for the wave equation on spherically symmetric, stationary spacetimes

The trapping effect on degenerate horizons

Global spherically symmetric solutions of non-linear wave equations with null condition on extremal Reissner–Nordström spacetimes

Well-posedness and ill-posedness results for the Novikov–Veselov equation

Contact & links